248 FAUNA HAWAIIENSIS 



CiSTELA Fabr. 



(i) Cistela crassicornis Sharp. 



Cistela crassicornis Sharp, Tr. Dublin Soc. 1885, p. 168, PI. IV. fig. 25. 



Hab. Oahu. Mountains near Honolulu, Palolo valley (Blackburn) ; my single 

 example was taken at the head of Pauoa valley, which is not far distant. It is, I have 

 no doubt, of the % sex. It has the elytra densely punctured, and I fancy that Sharp's 

 description of the ^ ' elytris parcius punctatis ' is rather apparent than real and is due to 

 the condition of the specimen, which is not thoroughly clean. 



(2) Cistela kauaiensis, sp. nov. 



Rufo-brunnea, ad colorem testaceum varians, capita thoraceque opacis, densissime 

 punctatis, elytris subnitidis, suturam versus plus minusve evidenter striatis, ibique saepe 

 impressis, sat crebre punctatis, punctis nonnullis seriatim dispositis. Long. 7*5 — 9 mm. 

 Antennarum 4 — 4' 2 5 mm. (Plate X. fig. 22.) 



Extremely like C. crassicornis but larger and with very evidently longer antennae. 

 The species agrees generally in sculpture with that species. It varies a little in the 

 length and structure of the antennae, irrespective of sex, but even in the most highly 

 developed ^ the joints are elongate even towards the apex. In this sex the three which 

 precede the apical joint are distinctly grooved beneath. The apical ventral segment 

 in the t has the apical margin somewhat raised, and this is to some extent the case in 

 some of the $$, but usually this segment in the Z has a more flattened or impressed 

 form than in the other. The apical joints of the antennae in the % are narrower than 

 the ^, and but little serrate inwardly. 



Hab. Kauai 4000 ft. Not common. 



Obs. Two or three examples from Lihue on the same island taken at an elevation 

 of 3000 ft. have shorter antennae and are only of the size of the smaller individuals of 

 C. kaziaiensis. They are therefore somewhat intermediate between that species and C. 

 crassicornis but probably are distinct from either. 



(3) Cistela nigricollis, sp. nov. 



Nigra, elytris brunneis, antennis pedibusque testaceis, capite nitido. Long. 7 mm., 

 antenn. 3'5 mm. $. 



Very closely allied to C. kauaiensis, but smaller and readily distinguished by the 

 black head and thorax, the former in front being distinctly punctured, not very densely 



